83 lines
2.4 KiB
PHP
83 lines
2.4 KiB
PHP
<?php
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/**
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* @file
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* Hooks for file module.
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*/
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/**
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* @addtogroup hooks
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* @{
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*/
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/**
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* Check that files meet a given criteria.
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*
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* This hook lets modules perform additional validation on files. They're able
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* to report a failure by returning one or more error messages.
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*
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* @param \Drupal\file\FileInterface $file
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* The file entity being validated.
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* @return array
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* An array of error messages. If there are no problems with the file return
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* an empty array.
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*
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* @see file_validate()
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*/
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function hook_file_validate(Drupal\file\FileInterface $file) {
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$errors = array();
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if (!$file->getFilename()) {
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$errors[] = t("The file's name is empty. Please give a name to the file.");
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}
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if (strlen($file->getFilename()) > 255) {
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$errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again.");
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}
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return $errors;
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}
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/**
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* Respond to a file that has been copied.
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*
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* @param \Drupal\file\FileInterface $file
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* The newly copied file entity.
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* @param \Drupal\file\FileInterface $source
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* The original file before the copy.
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*
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* @see file_copy()
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*/
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function hook_file_copy(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
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// Make sure that the file name starts with the owner's user name.
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if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
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$file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
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$file->save();
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\Drupal::logger('file')->notice('Copied file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename()));
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}
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}
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/**
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* Respond to a file that has been moved.
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*
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* @param \Drupal\file\FileInterface $file
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* The updated file entity after the move.
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* @param \Drupal\file\FileInterface $source
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* The original file entity before the move.
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*
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* @see file_move()
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*/
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function hook_file_move(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
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// Make sure that the file name starts with the owner's user name.
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if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
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$file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
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$file->save();
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\Drupal::logger('file')->notice('Moved file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename()));
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}
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}
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/**
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* @} End of "addtogroup hooks".
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*/
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